Year	Percent of GDP
2004-01-01	16.5368
2005-01-01	14.2336
2006-01-01	13.9965
2007-01-01	14.0873
2008-01-01	15.2177
2009-01-01	19.2655
2010-01-01	19.2413
2011-01-01	19.4819
2012-01-01	19.3656
2013-01-01	21.2210
2014-01-01	19.4924
2015-01-01	21.5893
2016-01-01	22.6708